Shortcut to redial last number?

Hey,

Is there a shortcut to redial the last number dialed?

I know (believe me, I know) the iPhone creates a REDIAL button on the screen when a call gets dropped by the ATT network.

I also know you can click the PHONE icon, click recent, then click the top non-red entry.

But most phones have a quickie to redial from anywhere. Just wonderin'

Jim